US1253782A

US1253782A - Coil-forming machine.

Info

Publication number: US1253782A
Application number: US12102016A
Authority: US
Inventors: Edgar J Bryan
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-09-19
Filing date: 1916-09-19
Publication date: 1918-01-15
Anticipated expiration: 1935-01-15

Description

E. J. BRYAN.

COIL FORIVIING MACHINE.

APPLICATION FILED SEPT. I9, 191e.

Patented Jau. 15, MMSI mwm Izz

EDGAR J. BRYAN, OF RIVERSIDE, CALIFORNIA.

Toall whom t may concern:

Be it known thatl, EDGAR citizen of the United States, Riverside, in the county of Riverside and Sta-te of California, have invented a new and useful Coil-Forming Ma the following is a specication.

This invention has for its primary object to provide aA machine for forming coils, particularly c'oil springs,which'is simple in construction, comparatively small,"and inexpensive to manufacture.

Another object of the invention is to provide aI machine of the character'described which will form coils of various lengths and diameters.

A further object of the invention is to provide a machine of the character described `which may be easily operated, it being possible to quickly change the parts of the machine to provide for the making of coils of varying lengths and diameters, and with the coils suitably7 spaced.

In the drawings Figure 1 is a vertical sectional view taken through the machine, showing it attached to a work bench or like support. p

Fig. 2 is a vertical sectional view taken on the line L-z, Fig. 1.

Fig. 3 is a horizontal seetionalview taken on line ais-w3, Fig. 41.

Fig. 4 is a side elevation ofpart of the machine.

Fig. 5 is a detail perspective view of one of the tension plates of the machine. y

Fig. 6 is a detail side elevation of the guide and spacer member.

Fig. 7 is a detail top plan view of one of the bearing plates, and

Fig. 8 is a fragmentary side elevation of a modified form of the machine in which the coils formed lie in engagement with or close` to each other.

Referring to the drawings by characters of reference, 1 designates a U-shaped frame, the side arms 2 of which serve as bearings and are Hexible, the frame being constructed of resilient metal. Suitable fastening elements 3 are extended through a work bench 4 and the bottom part 5 of the frame 1, and have nuts 6 turned thereon.

J. BRYAN, a residing at chine, Vof `which `coin-p.nonnina MACHINE. r

Specification of Letters Patent. Patentdl 7mm t5, 9918, Application iledseptenlber 19, 1916. Serial No.`121,020.

Mounted between the arms 2 of the frame are adjustable bearing plates 7 and 8 having their flat faces engaged with one another. Each of these plates is provided with an elongated slot 9 at one end and at its other end is an opening 10, A relatively larger hexagonal opening llis formed between the `slot 9 and opening 10 in each plate.` A bolt 12 is inserted through openings 13 formed "1n the upper Vends of the side arms 2 of the frame l and throughthe opening 10 in the plate `8 and the slot 9 in the plate 7 at the upper ends of said plates, it being noted that said plates are arranged with their opposed faces in engagement with one another and i so that the slot in one plate will register with the opening 10 in the other plate. The outer screw-threaded end 14 of the bolt 12 has a thumb-nut 15 turned thereon. An extension 16 on the nut engages the outer face of the adjacent side arm 2.

Mounted upon and `in engagement with the inner faces of the side arms are adjust

able bearing plates

17 and 18 which are identical withthe plates 7 and 8, the slots 18 in said plates being arranged uppermost, whereas the large openings 19 in said plates are adapted for registration with the alined openings 11 of the plates 7 and 8; and thc bolt 12 extends through the slots 18.

A bolt 20 corresponding to the one 12 is insertedthrough the slot in the arms 2 and plate 8, also through the small openings in the plates 7 and 17 and the other plate 18. Mounted upon the bolt 20 is a tubular member 21, which extends through the arms 2, andlplates 7, 8, 17 and 18, as does the bolt 20. One end of this tubular member 21 is screw-threaded and has a winged nut 22 mounted thereon, said nut engaging thc outer face of the adjacent arm 2. The bolt 20 extends beyond the screw-threaded end of the tubular member, is screw-threadcd, as at 23, and has a winged nut 24 turning thereon, said nut adapted to engage the outer adjacent end of the tubular member.

The other outer end of the tubular member V21 is rigidlyyconnected with a tension plate 25, which is held against the outer face of the adjacent arm 2 and is provided with a flange 26 on one end which engages one the plates and 2T and'isattached tolthe.V

plate Q7 plate plate 2T. These tension plates and washer by a fastening' element 3.() on the comprise a .meansfor. holding the material taut below the coil forming meansr as the material is being Wound on the. arbor.

A cylindrical rotatable coil-forniing.arbor 31 Ais supported by thearms 2 and bearing plates. The openings `11 and 19 in the beargd ingsplates T and S, 17 and 11S aline and in being hexagonal have sutlicient area to ac coniinodate arboi's of dili'erent sizes when the plates are adjusted.

smaller arbor substituted 1dependent upon thc diameter oi'the coil desired.:

.X crank 32 comprising jmeans, for turning the arbor `is removably mounted upon one end oi the arbor 3l and-held in position by;

This cranli near the pointa set-screw 33. where it is attached to the arbor is provided with an opening 34: adapted to receive one end oi the wire or material to be 4.bent into coils, and this provides means'carried byv the arbor for holding the `material toV cause y it to be Wound on the arbor. A coil-spacing member rtermed. ot' a comparatively straight length oit' relativel)7 stiit ivire isfprovided at one end with a hook'l 3G which is mounted upon the bolt .12 and e is interposed between the .head ot' the bolt and the adjacent arm 2. This inem-,ber 35 extendsdowniva-idh7 toward the arbor and i is bont so as .to nearl)v surround the arbor,

as at 37, said bent portion being otl'set1- so C as to provide for the formation of;helic'al coils, as -will be later more :t'ully described. The space between the coilst'ormed .depeiids` upon `the diameter ,of this member 435, and.4 said member ina'v be removed andy one liavl .ing a larger or smaller ,diameter substituted by Vlooseningthe bolt` 1:2 and removingthehook 36 therefrom. There is provided means to hold lthe bearing plates in adjusted position which includes sleevesI BSinounted upon the bolt 12 and upon the tubulaiymember 21, saidsleeires engaging the opposed.

faces

ot plates

8 and 17 and the opposed faces oi plates fi' and 18 and effecting1 a clamping action upon the tightening. of the

nuts

15 and 22. e

In operation the material or Wire .to be bent isplacedbetiveen the .washer'f29 and plate Q5 so` as to feed from beloivyispulled, taut,i extended up over theoHset bent end.. 37 of the member 35? asshown clearlyin inserted through both Washerand ably mounted in these arms and platesand.. therefore can Vbe taken out and :1 -larger oi' spaced from one another, as show-nin VFig. e 1 ofthe drawings.

Fig. 1 of the drawings, and is then extended through the opening 34 on the crank. Prior fio tli'isplaceinent ofthe material or wire to be bent, the arbor having the desired diameter is placed in position, and by tightening the. lthuinb-iiut-15V andfvvinged-nut 22, the sleeves 38 on the bolt 12 and tubular inem-v berEZL-ivillf elr'ecta clamping action upon the bearing plates and hold them in position toprovideanfadequate bearing area for `the arbor. ,The iexibility4 of the frame 1 pei'- mits the arms '2 to be forced toward each other when the nutslh and ZZlare tightened.: Y

and tliebearingiplates are 'caused to bind against the ends of-,tlieisleeves :The crank v32 lis.nextfsecure'dupon the arbor-.andfafterf` Y formed .into a series of' coils equidistsjintly gaged by the Wire being Wound 'upon `the arbor 31,: said Wire being engagedr between one face of the shankfot` the memberl 3:5 and' the opposedtaceof the curved portion thereof. Thus as the Wire is Wound around.

the -arboigit liscoiled to the right andsuch ceiling causes the arbor `to .inovelongitudiknallyl to the urightin its bearings in accord-` ance with the coiling of the Wire.: Bytightp ening the Winged nut 241 the bolt 201e-arises the washer 29l to tightly clamp `the Wirebetween it and the plateQ.` By; holding the material taut it is stretched and whenfwoun d upon the arbor isti-ee irom yirregular-it-ies or! bumps. :The coils formed. are thereforel l, evenly spaced and all of thejsame diameter.,

Referring particularly Jno1-Fig. 8 whereinA l have illustrated a modified formof inf;

A vention,v.39 designatesan arborhiounted im bearings, as is the arborl, fandiO designates a coil-forming member` `which is .fastened `toI one of the bearings and partially surroundst'he arbor. Thisiinember is not offset, asis `the one in the preferred formro'fA the inten-f,

tion, andv this form is. operatechasfis tlief materialto be lbent is placed* inf engagement? beil and upon Irotation of the arborcoils enl gagiiig .on'exanother are formed. This Vform of device is `designed for making .closely as. sociated coils or coils which eng-age; each-y other.y

lllliile the tension means-is shown .below preferred form with thevexception `that the? the arbor andthe coittor'ming means above of verticalpositiou if so` desired, dependent upon the character of work and the sup,

therein adapted to register with the opens i ings in said side arms to form a bearing for an arbor and an arbor mounted in the registering openings, a coil forming member operatively associated with the arbor, means to rotate thel arbor, and means to hold the plates in adjusted position.

2. In a machine for forming coils, a U- frame having openings in its side arms, bearing plates slidably adjustably mounted upon the side arms and having openings therein a daptcd to register with the openings in said side arms to form a bearing for an arbor and an arbor .mounted in the registering openings, a coil forming member operatively associated with the arbor, means to rotate the arbor, means to hold the plates in adjusted position comprising bolts inserted through the side arms of the U-frame, the heads of said bolts engaging the outer face of one side arm, said bolts being extended beyond the outer face of the other side arm and being screw-threaded, and nuts turned on said bolts and adapted for engagement with the outer face of said last-named side arms, said plates having slots therein receiving the bolts.

3. In a machine for forming coils, a U- franie having openings in its side arlns, bearing plates slidably adjustably mounted upon said side arms and having openings therein adapted to register with the openings in the side arms, other bearing plates mounted for slidin movement one upon the other between the side arms and having registering openings therein adapted for registration with the openings in the bearing plates and side arms, bolts extending through said side arms, said bearing plates having slots therein to receive the bolts, sleeves mounted upon the bolts and engaging the opposed faces of the first and last named bearing plates, said bolts having screwthreads on certain ends thereof and nuts turned on the screw-threaded portions of the bolts and adapted to engage the outer face of the adjacent side arm to hold the bearing plates in opposed position, and an arbor mounted in the registering openings in the plates and side arms.

4. In a machine for forming coils, a U- frame having openings in its side arms,

bearing `plates slidably adjustably mounted upon said sidearms and having openings thereinadapted t'o register with the open` ings in` theside arms, other bearing plates mounted for sliding movement one upon the other between the side arms and having registering openings therein adapted forregistration with the openings in the bearing plates and side arms, -bolts extendingV through said side arms, said bearing plates ing the opposed faces of the first and last named bearing plates, said bolts having screw-threads on certain ends thereof and nuts turned on the screw-threaded portions of the bolts and adapted to engage the outer face of the adjacent side arm to hold the bearing plates in opposed position, an arbor mounted in the registering openings in the plates and side arms, the coil forming member having one end hooked over one of said bolts and its other end hooked over and partially around the arbor, and means to rotate the arbor.

5. In a coil forming machine, spaced upstanding arms having openings therein, bearing plates slidably adjustably mounted upon the arms and having openings therein adapted to register with the iirst-named openings whereby a bearing for an arbor is provided by the arms and plates, an arbor rotatably mounted in the registering openings and being removable and longitudinally slidable relative thereto, and means to lock the bearing plates in adjusted position.

6. In a coil forming machine, upright opposed arms having openings therein registering With one another and opposed longitudinal slots therein to one side of the openings, a tubular member mounted in the opposed longitudinal slots, a head on one end of said member engaging the outer face of one of the arms, said member being externally screw-threaded upon its outer end, a nut mounted upon said screw-threaded end and adapted to engage the outer face of the adjacent arm, bearing plates slidably adjustably mounted upon the arms and having openings therein for registration with the openings in the arms to provide a bearing for an arbor, said arms having openings to receive the tubular member, other bearing plates slida-bly mounted upon one another and supported on the tubular member, said last-named bearing plates having registering openings adapted to register with the openings in the side arms and first-named bearing plates, sleeves mounted upon the tubular member and engaging the opposed faces of the iirst and second named bearing plates, a bolt extended through the tubular meinber, a tension plate carried upon one end of u having slots therein to` receive `,the bolts,

sleeves-mounted upon the nuts and engagthe-.bolt 'amdadalpiled Vfo copel'ztte' with the' openings, :L coil'form-ng 111e1'nbe1"operatively 10 headf. the Atubuar:mem-bev 'toffrctonally associated with'H10-'arbor7 anln/eans t ro? engage-nmterial t0 be formed. into coils, saidy tate thearbora bolthztvingzitsotherfend screw-threaded mdf` Signed at Les f Angeles, 'Geliforray this 5 extended lbeyond the unheaded end Offthe Mthday ofV September, 1916.-'.

tubular 111011010041,I :1f-nut mountedy upon the EDGAR-JfBRYf/LN.' screw-threaded end ofthe bolt' uudndapted VtHeSSeS: Y to Vengage the adjzncent-eud of thegf'tubuflar- CEAS.- J' .f C1-IUN-N,1 n member, an arborlhountedn themeg'steringw- MARY AE: BUASDELLT- CODiSfof thifpatefntfmay-beobtainejd fonvmcents cach',by; addressing-the "'Commissioncrfof lacqts- Washington, 11G.